conversion of electrical energy into thermal energy

1. Electrical Energy to Thermal Energy Conversions
Electrical energy is a form of energy that occurs as a result of either stored
or moving charged particles. When the energy is stored it is called electric
potential energy and when it is moving in an electric current it is a form of
kinetic energy. Our most common form of electrical energy is found in our
wall outlets. Thermal energy is energy that results from moving atoms or
molecules and is commonly referred to as heat. The faster the atoms or
molecules move, the more heat or thermal energy they have. In these
examples we will be exploring instances where electrical energy is
converted into thermal energy for use.
Examples of Electrical Energy to Thermal Energy Conversions
1. A toaster draws electric current (electrical energy) from a wall outlet and
converts these moving electric charges into heat (thermal energy) in the
filaments that turn red hot to cook your toast.
2. An electric clothes dryer turns electrical energy from a wall outlet into
heat (thermal energy) to dry your clothes as they spin.
3. A hair straightener turns the electrical energy from a wall outlet into heat
(thermal energy).
4. As electricity runs through the filaments in a space heater, the electrical
energy is converted into heat (thermal energy).
5. An electric stove plugged into a wall outlet uses the electrical energy to
flow into the burners on the stove top and as the electric charges pass
through the burners the electrical energy is converted into thermal energy.
5. An electric stove plugged into a wall outlet uses the electrical energy to
flow into the burners on the stove top and as the electric charges pass
through the burners the electrical energy is converted into thermal energy.
6. Although used for light, an incandescent light bulb produces mostly
thermal energy (they get very hot) as it turns electrical energy into light by
passing the electric charges through a very tiny filament.
1: Define the followings.
Electrical energy
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2. Thermalenergy
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2: Write three examples of conversionof electricalenergy to thermalenergy.
1:
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2:
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3:
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4: Draw a block flow diagram to show the conversionof electricalenergy.